John Deere 488 Rotary Tiller Technical Manual (TM1252)

TABLE OF CONTENTS

Introduction
Description
Specifications
Rotary Tiller Serial Number
Gear Case Serial Number
Torque Charts
Lubrication
Lubricate Gear Case
Gear Case Oil
Grease Fittings
Adjustments
Level Tiller Side-to-Side
Level Tiller Front-to-Rear
Adjust Sway Chains
Adjust Drive Chain
Diagnose Malfunctions
Tine Shaft Does Not Rotate
Erratic Tiller Operation
Tiller Does Not Till Effectively
Replace Tlnes and Drlve Components
Replace Tines
Replace Left-Hand Tine Shaft Bearing
Replace Right-Hand Tine Shaft Bearing
Repair or Replace Drive Chain
Replace Shear Bolt
Service Gear Case
Remove Gear Case
Disassemble Gear Case
Inspect Gear Case Parts
Assemble Gear Case
Install Gear Case
Service Powershaft

Remove Powershaft
Disassemble Powershaft
Install Powershaft